#include <STC15F2K60S2.H>

unsigned char read_dress(unsigned char dress);
static void I2C_Delay(unsigned char n);
	void I2CStart(void);
		void I2CStop(void);
			void I2CSendByte(unsigned char byt);
				unsigned char I2CReceiveByte(void);
					unsigned char I2CWaitAck(void);
						void I2CSendAck(unsigned char ackbit);
							void init_pcf8951(void);
								unsigned char red_data_pcf8951(void);